21152025

素因数分解:

$3^2\times 5^2\times {\mathrm{94009}}^1$

素因数の和:94025

約数の個数: 18

約数和(自身を含む): 37886030

約数和(自身を除く): 16734005

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 94009, 282027, 470045, 846081, 1410135, 2350225, 4230405, 7050675, 21152025]

約数ペア:

[(1, 21152025), (3, 7050675), (5, 4230405), (9, 2350225), (15, 1410135), (25, 846081), (45, 470045), (75, 282027), (225, 94009)]